Search Results for: mysql rpm

Sometimes it is desired to use particular software versions in production, and not necessary the latest ones. There may be several reasons for that, where I think the most common is when a new version should spend some time in testing or a staging environment before getting to production. In theory each new version is […]

This blog post was inspired by my visit at the annual Zabbix Conference in Riga, Latvia this year, where I gave a couple of talks on MySQL and beyond. It was a two day single-track event with some 200 participants, a number of interesting talks on Zabbix (and related technologies) and really well-organized evening activities. […]

Here on the Percona Support team we often ask customers to retrieve disk stats to monitor disk IO and to measure block devices iops and latency. There are a number of tools available to monitor IO on Linux. iostat is one of the popular tools and Percona Toolkit, which is free, contains the pt-diskstats tool […]

Given the recent excitement & interest around OpenStack I wanted to make sure I was ready to conduct appropriate evaluations of system performance. I generally turn to sysbench since it comes with a variety of different tests (accessed via –test= option interface), including: fileio – File I/O test cpu – CPU performance test memory – […]

A while back, I made some changes to the plugin interface for pt-online-schema-change which allows custom replication checks to be written. As I was adding this functionality, I also added the –plugin option to pt-table-checksum. This was released in Percona Toolkit 2.2.8. With these additions, I spent some time writing a plugin that allows Percona […]

Whither your rollback plan? MySQL 5.6 upgrades are in full swing these days and knowing how to safely upgrade from MySQL 5.5 to 5.6 is important. When upgrading a replication environment, it’s important that you can build a migration plan that safely allows for your upgrade with minimal risk — rollback is often a very […]

Here in Percona Support, we’re receiving several requests per day for help with Percona Cloud Tools installation steps. So I decided to prepare a step-by-step example of the installation process with some comments based on experience. Percona Cloud Tools is a hosted service providing access to query performance insights for all MySQL uses. After a […]

Percona announces the release of Percona Monitoring Plugins 1.1.1 to address the critical bug that appears after the 1.1 upgrade. Changelog: * Cacti mysql graphs stop working with data input field “server-id” after 1.1 upgrade (bug 1264814) * Non-integer poller errors for MySQL Query Response Time (bug 1264353) A new tarball is available from downloads […]

Percona is glad to announce the release of Percona Monitoring Plugins 1.0.5 for MySQL. The components are designed to integrate seamlessly with widely deployed solutions such as Nagios and Cacti, and are delivered in the form of templates, plugins, and scripts. Changelog: * Added mysql-ca option to ss_get_mysql_stats.php (bug 1213857) * Added user info to […]

MySQL 5.6 surely changes the game when it comes to security vs ease of use. Before MySQL 5.6 we would get default MySQL installation being pretty insecure – the user “root” will be created with no password as well as anonymous user with limited access from local host (though still enough to cause DOS attack […]